Improved field-emission properties of carbon nanotube field-emission arrays by controlled density growth,of carbon nanotubes

被引：4
|
作者：
Juan, CP [1 ]
Chen, KJ
Tsai, CC
Lin, KC
Hong, WK
Hsieh, CY
Wang, WP
Lai, RL
Chen, KH
Chen, LC
Cheng, HC
机构：
[1] Natl Chiao Tung Univ, Dept Elect Engn, Hsinchu 300, Taiwan
[2] Natl Chiao Tung Univ, Inst Elect, Hsinchu 300, Taiwan
[3] Acad Sinica, Inst Atom & Mol Sci, Taipei 106, Taiwan
[4] Natl Taiwan Univ, Ctr Condensed Matter Sci, Taipei 106, Taiwan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS | 2005年 / 44卷 / 1A期
关键词：
carbon nanotubes; inactive thin-film layer; density control of CNTs;
D O I：
10.1143/JJAP.44.365
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The density distribution of CNTs is one of the. crucial parameters determing the field-emission property of CNTs. To effectively control the density of CNTs, an inactive thin-film layer was deposited on a catalyst. The results showed that improved field emission property could be obtained with a thin SiO layer on the catalyst layer as the precursor. For 3.5 nm Fe and 3.5 nm SiO on 3.5 nm Fe as a catalyst, the turn-on field could be decreased from 3.7 V/mum. to 2.2 V/mum and the field-emission current density increased from 2.6 x 10(-8) A/cm(2) to 2.4 x 10(-4) A/cm(2) when the applied field was 4 V/mum.
引用
收藏
页码：365 / 370
页数：6
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